Pipe machine



Jan. -1, A 1929.

T. M. LILLEBERG PIPE MACHINE Original Filed Feb. 21. 1927 through, the chuck 9, the guide fingers 13 operating to prevent the end of the pipe from striking the chuck mechanism, these fingers being preferably tightened upon the pipe for thus positioning the latter by screwing up the actuating ring 18. In practice, the operator, in removing the p-ipe from the machine after it has been operated on as for example cut and threaded, would operate the ring 18 only to such an extent as to cause the fingers 13 to release their grip on the pipe so that in introducing another pipe into the machine these fingers would be in such position as to properly guide the pipe through the. chuck.

Vhile I have illustrated and described a particular illustrated embodiment of my invention, I da not wish to be understood as in tending to limit it thereto, as the same may be variously modified and altered without departing from the spirit of my invention.

What I claim as new, and desire to secure by Letters Patent, is:

1. In a pipe-machine, the combination of a hollow rotatable head adapted to receive the i e means for clam inv said iee in said 7 2D head, and means located between said firstnamed means and the outer end of said head for centering the pipe in said head and adapted to be moved into a position for clamp-ing against the pipe, said last-named means comprising separate members adapted to be moved toward and away from the pipe and means for simultaneously moving said members relative to the pipe.

2. In a pipe-machine, the combination of a hollow rotatable head adapted to receive the pipe, and centering means forv the pipe comprising a plurality of fingers pivotally connected with said head and grouped about the axis of the latter, and means operatively engaged with said fingers for simultaneously swinging them on their pivots.

3. In a pipe-machine, the combination of a hollow rotatable head adapted to receive the pipe, and centering means for the pipe comprising a plurality of fingers pivotally connected with said head and grouped about the axis of the latter, and means movable along said head and operatively engaging with said fingers for simultaneously swinging them on operatively engaging with said fingers for simultaneously moving them on their pivots.

5. In a pipe-machine, the combination of a hollow rotatable head adapted to receive the pipe, means for clamping said pipe in said head` a grooved member on `said head into which portions of said fingers extend whe-reby movement of said ring lengthwise of said head simultaneously swings said lingers on their pivots, and means for holding said member in adjusted position.

6. In a pipe-machine, the combination of'a hollow rotatable head adapted to receive the pipe, and centering means for the pipe comprising a plurality of fingers pivotallyl connected with said head and grouped about the axis of the latter, and a ring having threaded engagement with said head and containing an annular groove, said fingers being provided with outwardly extending portions extending into said groove, for the purpose set forth.

7. In a pipe-machine, the combination of a hollow rotatable head adapted to receive the pipe, and centering means for the pipe comprising a plurality of members mounted on said head for adjustment toward and away from the axis of said head, the inner edge portions of said members inclining toward the axis of said head in a directon away from the inlet end of said head.

TIDEMAN M. LILLEBERG. 

